Bob Sehlinger Books

The unofficial guide to Las Vegas

By Deke Castleman, Bob Sehlinger

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The unofficial guide to Walt Disney World 2009

By Bob Sehlinger

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Las Vegas with kids

By Bob Sehlinger

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The unofficial guide to Walt Disney World 2010

By Bob Sehlinger

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Sehlinger's team of anonymous inspectors checks out every inch of the Disney parks, and is honest and objective in its evaluations of each ride, show, hotel, and restaurant. Includes area maps.

The Unofficial Guide to Disneyland

By Bob Sehlinger

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Five great Features and Benefits offered ONLY by The Unofficial Guide: 1. Revolutionary, field-tested Touring Plans that can save four hours of standing in line in a single day 2. Dining chapter...

The unofficial guide to Walt Disney World 2011

By Bob Sehlinger

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This guide provides clear, unbiased advice on how to spend your time and money wisely at Walt Disney World.

The unofficial guide to Dubai

By Bob Sehlinger

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Beyond Disney

By Bob Sehlinger

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The Unofficial Guide to Walt Disney World 2007 Unofficial Guides

By Len Testa, Bob Sehlinger

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The Unofficial Guide to Las Vegas 2007 Unofficial Guides

By Deke Castleman, Muriel Stevens, Chris Mohney, Lynne Bachleda, Bob Sehlinger

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.